https://github.com/hashcat/hashcat/pull/2961#event-5251978340
From 0d5aed883b45cf3c218cb71916b08d56ae3d25a3 Mon Sep 17 00:00:00 2001
From: Miezhiko <Miezhiko@gmail.com>
Date: Thu, 2 Sep 2021 17:52:27 +0400
Subject: [PATCH] Fix compilation without brain

Signed-off-by: Miezhiko <Miezhiko@gmail.com>
---
 src/hashcat.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/hashcat.c b/src/hashcat.c
index 163d7408d..bf936ccc0 100644
--- a/src/hashcat.c
+++ b/src/hashcat.c
@@ -922,7 +922,10 @@ static int outer_loop (hashcat_ctx_t *hashcat_ctx)
 
   // clean up
 
+  #ifdef WITH_BRAIN
   brain_ctx_destroy       (hashcat_ctx);
+  #endif
+
   bitmap_ctx_destroy      (hashcat_ctx);
   combinator_ctx_destroy  (hashcat_ctx);
   cpt_ctx_destroy         (hashcat_ctx);
@@ -1090,13 +1093,13 @@ int hashcat_session_init (hashcat_ctx_t *hashcat_ctx, const char *install_folder
     }
   }
   #endif
-  #endif
 
   /**
    * brain
    */
 
   if (brain_ctx_init (hashcat_ctx) == -1) return -1;
+  #endif
 
   /**
    * logfile
